[INFO] fetching crate stream_buffer 0.2.0...
[INFO] testing stream_buffer-0.2.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate stream_buffer 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate stream_buffer 0.2.0
[INFO] finished tweaking crates.io crate stream_buffer 0.2.0
[INFO] tweaked toml for crates.io crate stream_buffer 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stream_buffer 0.2.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate stream_buffer 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded either v1.6.0
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.8
[INFO] [stderr]   Downloaded libc v0.2.74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ef2c545f16d2298614ccfab648cbce28baee12f3865397d9065193b11177790
[INFO] running `Command { std: "docker" "start" "-a" "9ef2c545f16d2298614ccfab648cbce28baee12f3865397d9065193b11177790", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ef2c545f16d2298614ccfab648cbce28baee12f3865397d9065193b11177790", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ef2c545f16d2298614ccfab648cbce28baee12f3865397d9065193b11177790", kill_on_drop: false }`
[INFO] [stdout] 9ef2c545f16d2298614ccfab648cbce28baee12f3865397d9065193b11177790
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0241f7f98cff2e9601b8a9d88bbd5a481917a7378817e29c3f06d55a251bbdfc
[INFO] running `Command { std: "docker" "start" "-a" "0241f7f98cff2e9601b8a9d88bbd5a481917a7378817e29c3f06d55a251bbdfc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling either v1.6.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling stream_buffer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::BufWriter`
[INFO] [stdout]  --> src/buf.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::BufWriter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Into` and `TryInto`
[INFO] [stdout]  --> src/chunk.rs:6:20
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::convert::{TryInto, Into};
[INFO] [stdout]   |                    ^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SeekFrom`
[INFO] [stdout]  --> src/types.rs:1:38
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use std::io::{Write, Read, Seek, SeekFrom};
[INFO] [stdout]   |                                      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error as IoError`
[INFO] [stdout]  --> src/types.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use std::io::{Error as IoError, Result as IoResult};
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/chunk.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{Read, SeekFrom};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IntoStream`
[INFO] [stdout]  --> src/chunk.rs:3:40
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::types::{FileLike, BufResult,IntoStream, IterStream};
[INFO] [stdout]   |                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/types.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     for item in items {
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 20 |     for _item in items {
[INFO] [stdout]    |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `ZERO_BYTE`
[INFO] [stdout]    |
[INFO] [stdout] 20 -     for item in items {
[INFO] [stdout] 20 +     for constants::ZERO_BYTE in items {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Buffer` is never used
[INFO] [stdout]   --> src/buf.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub trait Buffer {}
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ByteStreamBuf` is never used
[INFO] [stdout]   --> src/buf.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub type ByteStreamBuf<F> = StreamBuffer<ByteResult, F>;
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StreamBuffer2` is never constructed
[INFO] [stdout]   --> src/buf.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct StreamBuffer2<T: IterStream<S>, S, F: FileLike> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StreamBuffer3` is never constructed
[INFO] [stdout]   --> src/buf.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct StreamBuffer3<T, F> 
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BufferCreate` is never used
[INFO] [stdout]   --> src/buf.rs:43:11
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub trait BufferCreate<T, F: FileLike>: Buffer {
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CreateBuffer` is never used
[INFO] [stdout]   --> src/buf.rs:47:11
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub trait CreateBuffer<T, F: FileLike>: Buffer {
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BufferRead` is never used
[INFO] [stdout]   --> src/buf.rs:51:11
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub trait BufferRead<T>: Buffer {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/buf.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 85 | impl<T: IterStream<S>, S> StreamBuffer2<T, S, SpooledTempFile>
[INFO] [stdout]    | -------------------------------------------------------------- associated function in this implementation
[INFO] [stdout] 86 | {
[INFO] [stdout] 87 |     pub fn new(stream: T, size: usize) -> StreamBuffer2<T, S, SpooledTempFile> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Location` is never used
[INFO] [stdout]  --> src/chunk.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub enum Location {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ChunkLocation` is never used
[INFO] [stdout]   --> src/chunk.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub trait ChunkLocation {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ChunkRead` is never used
[INFO] [stdout]   --> src/chunk.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait ChunkRead<T> {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ZERO_BYTE` is never used
[INFO] [stdout]  --> src/constants.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const ZERO_BYTE: u8 = 0u8;
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INCREMENT` is never used
[INFO] [stdout]  --> src/constants.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const INCREMENT: usize = 1;
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Byte` is never used
[INFO] [stdout]  --> src/types.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub type Byte = u8;
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ByteBuf` is never used
[INFO] [stdout]  --> src/types.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub type ByteBuf = Vec<Byte>;
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ByteResult` is never used
[INFO] [stdout]   --> src/types.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub type ByteResult = IoResult<Byte>;
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `BufResult` is never used
[INFO] [stdout]   --> src/types.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub type BufResult = IoResult<ByteBuf>;
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> src/types.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn test<T: IntoStream<u8>>(items: T) {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NO_CAPACITY` is never used
[INFO] [stdout]  --> src/utils.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const NO_CAPACITY: usize = 0;
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sized_vec` is never used
[INFO] [stdout]  --> src/utils.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn sized_vec<T: Clone>(size: usize, item: T) -> Vec<T> {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `no_capacity_vec` is never used
[INFO] [stdout]   --> src/utils.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn no_capacity_vec<T>() -> Vec<T> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 5.69s
[INFO] running `Command { std: "docker" "inspect" "0241f7f98cff2e9601b8a9d88bbd5a481917a7378817e29c3f06d55a251bbdfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0241f7f98cff2e9601b8a9d88bbd5a481917a7378817e29c3f06d55a251bbdfc", kill_on_drop: false }`
[INFO] [stdout] 0241f7f98cff2e9601b8a9d88bbd5a481917a7378817e29c3f06d55a251bbdfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52fb0350292a31900342e50e67135a8122c09d83e30b9564b3a4e336fbe4472b
[INFO] running `Command { std: "docker" "start" "-a" "52fb0350292a31900342e50e67135a8122c09d83e30b9564b3a4e336fbe4472b", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::io::BufWriter`
[INFO] [stdout]  --> src/buf.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::BufWriter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Into` and `TryInto`
[INFO] [stdout]  --> src/chunk.rs:6:20
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::convert::{TryInto, Into};
[INFO] [stdout]   |                    ^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SeekFrom`
[INFO] [stdout]  --> src/types.rs:1:38
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use std::io::{Write, Read, Seek, SeekFrom};
[INFO] [stdout]   |                                      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error as IoError`
[INFO] [stdout]  --> src/types.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use std::io::{Error as IoError, Result as IoResult};
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/chunk.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{Read, SeekFrom};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IntoStream`
[INFO] [stdout]  --> src/chunk.rs:3:40
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::types::{FileLike, BufResult,IntoStream, IterStream};
[INFO] [stdout]   |                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling stream_buffer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/types.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     for item in items {
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 20 |     for _item in items {
[INFO] [stdout]    |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `ZERO_BYTE`
[INFO] [stdout]    |
[INFO] [stdout] 20 -     for item in items {
[INFO] [stdout] 20 +     for constants::ZERO_BYTE in items {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Buffer` is never used
[INFO] [stdout]   --> src/buf.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub trait Buffer {}
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ByteStreamBuf` is never used
[INFO] [stdout]   --> src/buf.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub type ByteStreamBuf<F> = StreamBuffer<ByteResult, F>;
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StreamBuffer2` is never constructed
[INFO] [stdout]   --> src/buf.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct StreamBuffer2<T: IterStream<S>, S, F: FileLike> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StreamBuffer3` is never constructed
[INFO] [stdout]   --> src/buf.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct StreamBuffer3<T, F> 
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BufferCreate` is never used
[INFO] [stdout]   --> src/buf.rs:43:11
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub trait BufferCreate<T, F: FileLike>: Buffer {
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CreateBuffer` is never used
[INFO] [stdout]   --> src/buf.rs:47:11
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub trait CreateBuffer<T, F: FileLike>: Buffer {
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BufferRead` is never used
[INFO] [stdout]   --> src/buf.rs:51:11
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub trait BufferRead<T>: Buffer {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/buf.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 85 | impl<T: IterStream<S>, S> StreamBuffer2<T, S, SpooledTempFile>
[INFO] [stdout]    | -------------------------------------------------------------- associated function in this implementation
[INFO] [stdout] 86 | {
[INFO] [stdout] 87 |     pub fn new(stream: T, size: usize) -> StreamBuffer2<T, S, SpooledTempFile> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Location` is never used
[INFO] [stdout]  --> src/chunk.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub enum Location {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ChunkLocation` is never used
[INFO] [stdout]   --> src/chunk.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub trait ChunkLocation {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ChunkRead` is never used
[INFO] [stdout]   --> src/chunk.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait ChunkRead<T> {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ZERO_BYTE` is never used
[INFO] [stdout]  --> src/constants.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const ZERO_BYTE: u8 = 0u8;
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INCREMENT` is never used
[INFO] [stdout]  --> src/constants.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const INCREMENT: usize = 1;
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Byte` is never used
[INFO] [stdout]  --> src/types.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub type Byte = u8;
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ByteBuf` is never used
[INFO] [stdout]  --> src/types.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub type ByteBuf = Vec<Byte>;
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ByteResult` is never used
[INFO] [stdout]   --> src/types.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub type ByteResult = IoResult<Byte>;
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `BufResult` is never used
[INFO] [stdout]   --> src/types.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub type BufResult = IoResult<ByteBuf>;
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> src/types.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn test<T: IntoStream<u8>>(items: T) {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NO_CAPACITY` is never used
[INFO] [stdout]  --> src/utils.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const NO_CAPACITY: usize = 0;
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sized_vec` is never used
[INFO] [stdout]  --> src/utils.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn sized_vec<T: Clone>(size: usize, item: T) -> Vec<T> {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `no_capacity_vec` is never used
[INFO] [stdout]   --> src/utils.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn no_capacity_vec<T>() -> Vec<T> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::BufWriter`
[INFO] [stdout]  --> src/buf.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::BufWriter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Into` and `TryInto`
[INFO] [stdout]  --> src/chunk.rs:6:20
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::convert::{TryInto, Into};
[INFO] [stdout]   |                    ^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SeekFrom`
[INFO] [stdout]  --> src/types.rs:1:38
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use std::io::{Write, Read, Seek, SeekFrom};
[INFO] [stdout]   |                                      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error as IoError`
[INFO] [stdout]  --> src/types.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use std::io::{Error as IoError, Result as IoResult};
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead` and `self`
[INFO] [stdout]   --> src/lib.rs:19:19
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use std::io::{self, BufRead};
[INFO] [stdout]    |                   ^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]   --> src/lib.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     use itertools::Itertools;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StreamBuffer2`
[INFO] [stdout]   --> src/lib.rs:24:36
[INFO] [stdout]    |
[INFO] [stdout] 24 |     use super::buf::{StreamBuffer, StreamBuffer2, ByteStreamBuf, BufferRead, BufferCreate};
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/chunk.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{Read, SeekFrom};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IntoStream`
[INFO] [stdout]  --> src/chunk.rs:3:40
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::types::{FileLike, BufResult,IntoStream, IterStream};
[INFO] [stdout]   |                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/types.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     for item in items {
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 20 |     for _item in items {
[INFO] [stdout]    |         +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `ZERO_BYTE`
[INFO] [stdout]    |
[INFO] [stdout] 20 -     for item in items {
[INFO] [stdout] 20 +     for constants::ZERO_BYTE in items {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StreamBuffer2` is never constructed
[INFO] [stdout]   --> src/buf.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct StreamBuffer2<T: IterStream<S>, S, F: FileLike> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StreamBuffer3` is never constructed
[INFO] [stdout]   --> src/buf.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct StreamBuffer3<T, F> 
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CreateBuffer` is never used
[INFO] [stdout]   --> src/buf.rs:47:11
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub trait CreateBuffer<T, F: FileLike>: Buffer {
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/buf.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 85 | impl<T: IterStream<S>, S> StreamBuffer2<T, S, SpooledTempFile>
[INFO] [stdout]    | -------------------------------------------------------------- associated function in this implementation
[INFO] [stdout] 86 | {
[INFO] [stdout] 87 |     pub fn new(stream: T, size: usize) -> StreamBuffer2<T, S, SpooledTempFile> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> src/types.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn test<T: IntoStream<u8>>(items: T) {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "52fb0350292a31900342e50e67135a8122c09d83e30b9564b3a4e336fbe4472b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52fb0350292a31900342e50e67135a8122c09d83e30b9564b3a4e336fbe4472b", kill_on_drop: false }`
[INFO] [stdout] 52fb0350292a31900342e50e67135a8122c09d83e30b9564b3a4e336fbe4472b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 03ad3200ce0ceb23aceb14fb1b37d805b6e5e689215479a5a09d73d35aacaf33
[INFO] running `Command { std: "docker" "start" "-a" "03ad3200ce0ceb23aceb14fb1b37d805b6e5e689215479a5a09d73d35aacaf33", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::io::BufWriter`
[INFO] [stderr]  --> src/buf.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::BufWriter;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Into` and `TryInto`
[INFO] [stderr]  --> src/chunk.rs:6:20
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::convert::{TryInto, Into};
[INFO] [stderr]   |                    ^^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SeekFrom`
[INFO] [stderr]  --> src/types.rs:1:38
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub use std::io::{Write, Read, Seek, SeekFrom};
[INFO] [stderr]   |                                      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Error as IoError`
[INFO] [stderr]  --> src/types.rs:2:19
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub use std::io::{Error as IoError, Result as IoResult};
[INFO] [stderr]   |                   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/chunk.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{Read, SeekFrom};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `IntoStream`
[INFO] [stderr]  --> src/chunk.rs:3:40
[INFO] [stderr]   |
[INFO] [stderr] 3 | use super::types::{FileLike, BufResult,IntoStream, IterStream};
[INFO] [stderr]   |                                        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `item`
[INFO] [stderr]   --> src/types.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     for item in items {
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: if this is intentional, prefix it with an underscore
[INFO] [stderr]    |
[INFO] [stderr] 20 |     for _item in items {
[INFO] [stderr]    |         +
[INFO] [stderr] help: you might have meant to pattern match on the similarly named constant `ZERO_BYTE`
[INFO] [stderr]    |
[INFO] [stderr] 20 -     for item in items {
[INFO] [stderr] 20 +     for constants::ZERO_BYTE in items {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Buffer` is never used
[INFO] [stderr]   --> src/buf.rs:11:11
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub trait Buffer {}
[INFO] [stderr]    |           ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `ByteStreamBuf` is never used
[INFO] [stderr]   --> src/buf.rs:13:10
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub type ByteStreamBuf<F> = StreamBuffer<ByteResult, F>;
[INFO] [stderr]    |          ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `StreamBuffer2` is never constructed
[INFO] [stderr]   --> src/buf.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub struct StreamBuffer2<T: IterStream<S>, S, F: FileLike> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `StreamBuffer3` is never constructed
[INFO] [stderr]   --> src/buf.rs:32:12
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub struct StreamBuffer3<T, F> 
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `BufferCreate` is never used
[INFO] [stderr]   --> src/buf.rs:43:11
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub trait BufferCreate<T, F: FileLike>: Buffer {
[INFO] [stderr]    |           ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `CreateBuffer` is never used
[INFO] [stderr]   --> src/buf.rs:47:11
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub trait CreateBuffer<T, F: FileLike>: Buffer {
[INFO] [stderr]    |           ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `BufferRead` is never used
[INFO] [stderr]   --> src/buf.rs:51:11
[INFO] [stderr]    |
[INFO] [stderr] 51 | pub trait BufferRead<T>: Buffer {
[INFO] [stderr]    |           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/buf.rs:87:12
[INFO] [stderr]    |
[INFO] [stderr] 85 | impl<T: IterStream<S>, S> StreamBuffer2<T, S, SpooledTempFile>
[INFO] [stderr]    | -------------------------------------------------------------- associated function in this implementation
[INFO] [stderr] 86 | {
[INFO] [stderr] 87 |     pub fn new(stream: T, size: usize) -> StreamBuffer2<T, S, SpooledTempFile> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Location` is never used
[INFO] [stderr]  --> src/chunk.rs:9:10
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub enum Location {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `ChunkLocation` is never used
[INFO] [stderr]   --> src/chunk.rs:16:11
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub trait ChunkLocation {
[INFO] [stderr]    |           ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `ChunkRead` is never used
[INFO] [stderr]   --> src/chunk.rs:20:11
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub trait ChunkRead<T> {
[INFO] [stderr]    |           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `ZERO_BYTE` is never used
[INFO] [stderr]  --> src/constants.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub const ZERO_BYTE: u8 = 0u8;
[INFO] [stderr]   |           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `INCREMENT` is never used
[INFO] [stderr]  --> src/constants.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub const INCREMENT: usize = 1;
[INFO] [stderr]   |           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Byte` is never used
[INFO] [stderr]  --> src/types.rs:8:10
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub type Byte = u8;
[INFO] [stderr]   |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `ByteBuf` is never used
[INFO] [stderr]  --> src/types.rs:9:10
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub type ByteBuf = Vec<Byte>;
[INFO] [stderr]   |          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `ByteResult` is never used
[INFO] [stderr]   --> src/types.rs:10:10
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub type ByteResult = IoResult<Byte>;
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `BufResult` is never used
[INFO] [stderr]   --> src/types.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub type BufResult = IoResult<ByteBuf>;
[INFO] [stderr]    |          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test` is never used
[INFO] [stderr]   --> src/types.rs:19:4
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn test<T: IntoStream<u8>>(items: T) {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `NO_CAPACITY` is never used
[INFO] [stderr]  --> src/utils.rs:1:7
[INFO] [stderr]   |
[INFO] [stderr] 1 | const NO_CAPACITY: usize = 0;
[INFO] [stderr]   |       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `sized_vec` is never used
[INFO] [stderr]  --> src/utils.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn sized_vec<T: Clone>(size: usize, item: T) -> Vec<T> {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `no_capacity_vec` is never used
[INFO] [stderr]   --> src/utils.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn no_capacity_vec<T>() -> Vec<T> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead` and `self`
[INFO] [stderr]   --> src/lib.rs:19:19
[INFO] [stderr]    |
[INFO] [stderr] 19 |     use std::io::{self, BufRead};
[INFO] [stderr]    |                   ^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `itertools::Itertools`
[INFO] [stderr]   --> src/lib.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     use itertools::Itertools;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `StreamBuffer2`
[INFO] [stderr]   --> src/lib.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 |     use super::buf::{StreamBuffer, StreamBuffer2, ByteStreamBuf, BufferRead, BufferCreate};
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `StreamBuffer2` is never constructed
[INFO] [stderr]   --> src/buf.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub struct StreamBuffer2<T: IterStream<S>, S, F: FileLike> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `stream_buffer` (lib) generated 28 warnings (run `cargo fix --lib -p stream_buffer` to apply 5 suggestions)
[INFO] [stderr] warning: `stream_buffer` (lib test) generated 15 warnings (11 duplicates) (run `cargo fix --lib -p stream_buffer --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stream_buffer-2c8171439a74dc59)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test tests::backwards ... ok
[INFO] [stdout] test tests::tempfile ... ok
[INFO] [stdout] test tests::vec_iter ... ok
[INFO] [stdout] test tests::chunk_from_0 ... ok
[INFO] [stdout] test tests::old_main_fn ... ok
[INFO] [stdout] test tests::old_main_fn2 ... ok
[INFO] [stdout] test tests::same_chunk_from_0 ... ok
[INFO] [stdout] test tests::forward ... ok
[INFO] [stdout] test tests::stutter ... ok
[INFO] [stdout] test tests::forward_then_extend_from_0 ... ok
[INFO] [stdout] test tests::forward_skip_ahead ... ok
[INFO] [stdout] test tests::inject_file_dependency ... ok
[INFO] [stdout] test tests::create ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/stream_buffer-680953bc0236fb19)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stream_buffer
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "03ad3200ce0ceb23aceb14fb1b37d805b6e5e689215479a5a09d73d35aacaf33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03ad3200ce0ceb23aceb14fb1b37d805b6e5e689215479a5a09d73d35aacaf33", kill_on_drop: false }`
[INFO] [stdout] 03ad3200ce0ceb23aceb14fb1b37d805b6e5e689215479a5a09d73d35aacaf33